.header .nav-item:nth-child(5) a {
    color: #1d1d1d;
}

.w {
    width: 1080px;
}

.header .w {
    width: 1200px;
}

.footer {
    background-color: #4d4d4d;
}

.footer li,
.footer a {
    color: #f1f0f0;
}

.banner {
    background-image: url(../img/about/about1.jpg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    width: 100%;
    height: 270px;
    margin-bottom: 101px;
}

.story h2 {
    font-size: 26px;
    font-weight: normal;
    color: #444444;
    text-align: center;
}

.story h3 {
    font-size: 16px;
    font-weight: normal;
    color: #c1c1c1;
    text-align: center;
    margin: 10px 0 77px;
}

.story .bgc {
    float: left;
    margin-left: 17px;
    margin-bottom: 50px;
}

.story .bgc a {
    display: block;
    width: 422px;
    height: 314px;
    background-color: red;
    background-image: url('../img/about/about2.jpg');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    text-align: center;
}

.story .bgc span {
    display: none;
    width: 422px;
    height: 314px;
    line-height: 314px;
    font-size: 30px;
    font-weight: normal;
    color: #ffffff;
    background-color: rgba(0, 0, 0, 0.5);
}

.story .bgc:hover span {
    display: block;
}

.story p {
    text-align: left;
    text-indent: 2em;
    padding-left: 507px;
    font-size: 16px;
    line-height: 25px;
    font-weight: normal;
    color: #6b6b6b;
    word-break: break-all;

}

.story .p3 {
    float: left;
    width: 1080px;
    padding-left: 0px;
    margin-bottom: 159px;
}

.contact {
    margin-bottom: 60px;
}

.contact h2 {
    text-align: center;
    font-size: 26px;
    font-weight: normal;
    color: #444444;
}

.contact h3 {
    margin: 10px 0 80px;
    text-align: center;
    font-size: 16px;
    font-weight: normal;
    color: #c1c1c1;
}

.contact .bgi {
    display: block;
    width: 1080px;
    margin-bottom: 34px;
}

.contact .title {
    font-size: 26px;
    font-weight: normal;
    color: #373737;
}

.contact .desc {
    font-size: 16px;
    line-height: 22px;
    font-weight: normal;
    color: #616060;
    margin: 24px 0 40px;
}

.contact .contact-item {
    float: left;
    margin-left: 39px;
    line-height: 24px;
}

.contact .contact-item p {
    font-size: 16px;
    font-weight: normal;
    color: #616060;
}

.contact .contact-item p:first-of-type {
    margin-top: 167px;
}

@media (max-width: 768px) {
    .header .w{
        width: 95%;
    }
    .story .bgc {
        width: 100%;
        margin-left: 0;

    }
    .story .bgc a {
        margin: auto;
    }
    .story p{
        padding-left: 0;
    }
    .contact {
        text-align: center;
    }
    .contact .contact-item {
        width: 100%;
        margin-left: auto;
    }
    .contact .contact-item p:first-of-type {
        margin-top: 10px;
    }

}